The speaker sim is pretty darn good! Palmer stuff is used in studios all over the place, and I believe Joe Satriani swears by them.
If I'd bothered spending a couple of hours tweaking stuff I reckon I could have solved the fizziness issues and got more bass through. The amp itself has a tone of low end that doesn't come across in the clips.
Maybe using input '2' would have helped with the 'bucker tones too :roll: